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-rw-r--r--drivers/block/mtip32xx/mtip32xx.c4
-rw-r--r--drivers/block/mtip32xx/mtip32xx.h1
2 files changed, 3 insertions, 2 deletions
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 61b046f256ca..ae910347b7cf 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -174,7 +174,6 @@ static void mtip_init_cmd_header(struct request *rq)
{
struct driver_data *dd = rq->q->queuedata;
struct mtip_cmd *cmd = blk_mq_rq_to_pdu(rq);
- u32 host_cap_64 = readl(dd->mmio + HOST_CAP) & HOST_CAP_64;
/* Point the command headers at the command tables. */
cmd->command_header = dd->port->command_list +
@@ -182,7 +181,7 @@ static void mtip_init_cmd_header(struct request *rq)
cmd->command_header_dma = dd->port->command_list_dma +
(sizeof(struct mtip_cmd_hdr) * rq->tag);
- if (host_cap_64)
+ if (test_bit(MTIP_PF_HOST_CAP_64, &dd->port->flags))
cmd->command_header->ctbau = __force_bit2int cpu_to_le32((cmd->command_dma >> 16) >> 16);
cmd->command_header->ctba = __force_bit2int cpu_to_le32(cmd->command_dma & 0xFFFFFFFF);
@@ -386,6 +385,7 @@ static void mtip_init_port(struct mtip_port *port)
port->mmio + PORT_LST_ADDR_HI);
writel((port->rxfis_dma >> 16) >> 16,
port->mmio + PORT_FIS_ADDR_HI);
+ set_bit(MTIP_PF_HOST_CAP_64, &port->flags);
}
writel(port->command_list_dma & 0xFFFFFFFF,
diff --git a/drivers/block/mtip32xx/mtip32xx.h b/drivers/block/mtip32xx/mtip32xx.h
index e8286af50e16..e20e55dab443 100644
--- a/drivers/block/mtip32xx/mtip32xx.h
+++ b/drivers/block/mtip32xx/mtip32xx.h
@@ -140,6 +140,7 @@ enum {
(1 << MTIP_PF_SE_ACTIVE_BIT) |
(1 << MTIP_PF_DM_ACTIVE_BIT) |
(1 << MTIP_PF_TO_ACTIVE_BIT)),
+ MTIP_PF_HOST_CAP_64 = 10, /* cache HOST_CAP_64 */
MTIP_PF_SVC_THD_ACTIVE_BIT = 4,
MTIP_PF_ISSUE_CMDS_BIT = 5,